military and aerospace solutions guide
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MILITARY AND AEROSPACE SOLUTIONS GUIDE
Military and Aerospace electronics systems continue to demand increasing performance and throughput at the highest frequencies. These demands, together with stringent limitations on power consumption, size, weight, and of course, cost, are accelerating the adoption of new digital architectures for signal acquisition and generation.
Inphi solutions are powering next-generation Military and Aerospace systems with advanced digital architectures that simplify expensive, power hungry RF front ends. Inphi offers the most complete portfolio of high performance digital, analog, and mixed signal products for designs from DC to 50 GHz.
01Monobit Receiver
SOLUTION EXAMPLESThe following solution examples illustrate some of these advanced digital architectures:
01020304
Monobit Receiver
Direct Conversion Receiver
Digital Spectrometer
Phase Locked Loop
High Speed Digital Pattern Generator and Digitizer
05
01
Measurement of simultaneous frequenciesSmaller size and lighter weightLower cost and power
In conventional Electronic Warfare (EW) orElectronic Countermeasure (ECM) systems,Instantaneous Frequency Measurement (IFM)receivers measure the frequency of a radar pulsein real time. However, due to the architecturesof these systems, it is difficult to measure twosimultaneous frequencies.
Monobit Receivers were developed to address this problem. A monobit receiver is a single-bit analog to digital converter, plus advanced digital signal processing (DSP) algorithms to extract the frequency and phase information. A key enabling technology for monobit receivers is the monobit analog-to-digital converter (ADC), as it determines the maximum input signal frequency and measurement bandwidth.
The advantages of monobit receivers vs. IFM receivers include:
applications. They include:
25706CP and 25707CP 25 Gbps Monobit ADC
23 GHz analog bandwidth
Highest performance monobit ADC in the industry
13606CP and 13607CP 13 Gbps Monobit ADC
23 GHz analog bandwidth
1385DX 12.5 Gbps Monobit ADC + 1:8 Demultiplexer
14 GHz analog bandwidth
Integrated 1:8 demultiplexer for ease of interface to FPGA or DSP
5081DX 50 GHz 1:4 Demultiplexer
RF SignalIn
FPGA or DSP forDiscrete FourierTransform and
Decision Threshold
Sampling ClockUp to 12.5 GHz
8
Inphi 1385DXMonobit ADC +
1:8 DeMux
LimitingAmp
Anti-AliasBandpass
Filter
02
Inphi 1385DX1:8 DeMux
Inphi 1385DX1:8 DeMux
Inphi 1385DX1:8 DeMux
Inphi 1385DX1:8 DeMux
Inphi 1385DX1:8 DeMux
Inphi25706CP
Monobit ADC
LimitingAmp
Sampling ClockUp to 25 GHz
RF SignalIn
FPGA orDSP forDiscreteFourier
Transformand
DecisionThreshold
Inphi 5081DX1:4 DeMux
Anti-AliasBandpass
Filter
The 1385DX Demultiplexer with Integrated Monobit ADC in a Monobit Receiver.
The 25706CP Monobit ADC and the 1385DX Demultiplexer in a Monobit Receiver.
02Direct Conversion Receiver
Inphi1821TH
THAADC
15 GHz 20 MHz
LNA
Inphi offers the highest performance, commercially available Track and Hold Amplifiers in the industry. They include: 1821TH 18 GHz Bandwidth THA
18 GHz analog bandwidth
2 GS/s sampling rate
6.6 ENOB at 5 GHz
1321TH 13 GHz Bandwidth THA
13 GHz analog bandwidth
2 GS/s sampling rate
20 MHz15 GHz 1 GHz
LO1
LNA ADC
LO2
BPF BPFBPF DSP/ASIC
BPF DSP/ASIC
03
Traditional Receiver Chain Using Multiple IF Stages.
Direct Conversion Receiver Using Inphi 1821TH.
A traditional receiver uses multiple IF stages, with mixers, local oscillators (LOs), filters, etc. Inphi’s high bandwidth Track and Hold Amplifiers (THA), with input analog bandwidth of up to 18 GHz, enable direct conversion receiver architectures by extending the input analog bandwidth of commercially available ADCs. This results in systems with less lower power, smaller size, and lower cost.
03Digital Spectrometer
04
300 GHz Center Freq.6 GHz BW
3-9 GHz IFEach THA/ADC Clocked
at 2 GHz to Subsample IF
LO1
LNABPF
Inphi1821TH
THAADC DSP/ASIC/ASICDSP/BPF
ADC DSP/ASIC/ASICDSP/FPGADSP/
Digital Spectrometer Using Inphi 1821TH.
DSP/FPGA
Inphi1821TH
THABPF
The next generation of radio telescopes, with large arrays of smaller antennas, is driving much higher computational and interconnect bandwidths. However, traditional radio astronomy instrumentation is highly customized for
software to perform analyses such as beam forming and wide band spectroscopy.
An essential element of these systems is a high speed digital spectrometer that directly digitizes the downconverted IF
enables these next generation digital spectrometers to operate with higher bandwidth, higher resolution, lower power, and lower cost.
04Phase Locked LoopPhase locked loops (PLL) are used for many high speed communications applications such as frequency synthesizers, clock and data recovery, and frequency multipliers. In the highest performance applications, discrete prescalers (frequency dividers) are used to support frequencies beyond the range of integrated PLL chips.
Inphi’s prescalers offer the highest frequency range, lowest phase noise, lowest power, and highest input sensitivity. They include:
25671DV DC to 25 GHz Divide-by-2 Prescaler
25675DV DC to 25 GHz Divide-by-4 Prescaler
25673DV DC to 25 GHz Divide-by-8 Prescaler
50718DV 50 GHz Divide-by-2 and 4 Prescaler
50728DV 50 GHz Divide-by-8 Prescaler
Inphi25671DV
Divide-by-2Prescaler
ReferenceFrequency
VCOOutput
FrequencyLoopFilter
PhaseDetector
Phase Locked Loop for Frequency Multiplier Using Inphi 25671DV.
05
05High Speed Digital Pattern Generator and Digitizer
high speed digital building-block products from 10 Gbps to 50 Gbps. They include:
5080MX 50 Gbps 4:1 Multiplexer
5081DX 50 Gbps 1:4 Demultiplexer
50700DF and 50701DF 50 Gbps D Flip-Flop
2080MX 20 Gbps 4:1 Multiplexer
1385DX 12.5 Gbps 1:8 Demultiplexer
20708SE and 20709SE 20 Gbps 2:1 Selector
Inphi50701DF
D Flip-Flop
Inphi 2080MX4:1 Mux
Inphi 2080MX4:1 Mux
Inphi 2080MX4:1 Mux
Inphi 2080MX4:1 Mux
FPGA withLVDS
Outputs
Inphi 5080MX4:1 Mux
DigitalPatternup to 50
Gbps
Mux SyncCircuitry
FPGAwithLVDSInputs
Inphi 1385DX1:8 DeMux
Inphi 1385DX1:8 DeMux
Inphi 1385DX1:8 DeMux
Inphi 1385DX1:8 DeMux
DigitalPatternup to 50
Gbps
Inphi50701DF
D Flip-Flop
Inphi 5081DX1:4 DeMux
06
Digital Pattern Generator Using Inphi’s Multiplexer Products.
High Speed Digitizer Using Inphi’s Demultiplexer Products.
A high performance pattern generator that can generate arbitrary digital patterns is commonly used in R&D and testing applications to stimulate, debug, and test digital signal processing systems. Inphi’s high speed multiplexer solutions enable digital pattern generation at up to 50 Gbps.
The high speed digitizer, the counterpart to the digital pattern generator, is the workhorse of high speed electronics systems. Inphi’s high speed demultiplexer solutions enable digital data acquisition at up to 50 Gbps.
Inphi Product PortfolioInphi’s high performance portfolio includes the following product families, with speeds from 10 GHz to 50 GHz:
High Speed Digital
Clock and data fan-out
Logic gate
Multiplexer and demultiplexer
Broadband Analog
Monobit ADC
Amplifier
Track and hold
Microwave
Prescaler
Frequency doubler
Inphi has a strong history of providing products and solutions to the Military and Aerospace markets. For more specific information, please contact Inphi at [email protected].
Inphi Corporation Headquarters2393 Townsgate, Suite 101, Westlake Village, CA 91361Phone: (805) 446-5100, Fax: (805) 446-5190www.inphi-corp.com
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